Ceiling and floor structure



Filed June 12, 1950 2 Sheets-Sheet \I MM g mm1/tto@ JaliwSKL/zlv,

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May 3l, 1932.

J. KAHN CEILING AND FLOOR STRUCTURE Filed June 12, 1960 2 Sheets-Sheet 2 jizz/1w,

N\ 1 N 4 NN www Patented May r31,1932l UNITED STATES- YoUNGs'rowN, omo, A ooRPonAirb-'or"nenit CEILING AND rLoofn sTitUd'rf'R'Ei Application filed June 12,

The-object of the present invention is to provide a combination floor and ceiling structure of a novel nature that is relatively light in weight, substantially sound-proof' and has peculiarly effective fire-resisting qualities.

In the accompanying drawings:

Figure 1 is a vertical sectional View of one one embodiment of the invention, extending longitudinally of the joists.

Figure 2 is a crosssectional Viewk at right angles to Figure 1.

Y Figure '3 is a 4detail sectional view of a modified form of construction. e

Figure 4 is a detailV sectional View on the line 4 4 of Figure 3.

In the embodiment disclosed, joists of skeleton formation are employed. Each Vjoist Consists of Van .upper chord member 5 substantially T-shaped in cross section and' a lowerchordmember 6 of corresponding formation 1n cross sectional area. The lower chord. member 6 has at its ends upward extensions 7 joined tothe ends of the upper chord member" 5, as illustrated atS. Bot.V tom chord extensions 9 are located below the inclined portions 7 and serve `to* complete thechord members 6 tothe walls 10 of the structure supporting the joists.

They chord members are connected throughout their length by a lattice 11 consisting of a rod bent into angularly disposed portions that eX- tend from one chord member to the other and are suitably welded or otherwise secured to the chords. f u

On the upper chordrmember 5 is support-V ed Ya floor deck consisting of sheet metal channeled .units 12 having kupper facing i walls 13located inthe same plane and side walls 14 that are interlocked and rest upon the upper chord 5. The units 12, it will be noted, are thus chambered and Y these chambers are in open communication'with the space iny and aroundthe joists.

A layer of sound insulating material 15' islocated on the facing walls 13 of the deck andy is preferably of relatively opencellular material. On this layer 15 is a second layer 16 of denser and hardersupporting material that thus protects the underlying layer 15I and prevents its tbein'gi vdented on broken;

byl furniture orf.` otherz heavy/ objects r' placedonthe floor: Over thisflayer 16 is 1a'atlrirdI layer l-Yfwhichmay beq linolum or` the likes'y and'y constitutes a: wear-resisting;` surfacing 5521 cover. t I

Suspended from the lower chord'by'clips 18k on otherf suitable fastenersgarefchanneled hanger 'barsA 191 having .outstanding angesr 20 that lier against ythe bottom of th'e 'f'choid 051i andf-arefengagedtbysaid clips-:f` llhcsefhangs erfb ars 19fhave1V their lowerf'portionsfprovid'-v f ed: with .oppositelyl outstandinga flanges 21? forming'cgroovesfthat receive fthe marginsf ofceilingesheetsf' 23V Thefsheetsff obviously#y 6511 i may; be fof; any desired or= Well knownY mate: rail.: Itiwill.. bei' noted that'thesesl ceiling; sheets i are 'spacedfffrmjv rthelwerlsides ofatlierv joists (Strand thatvthe :channels of the 'hangers around thefsleletoirrjoistsfr y Y Thesstriicturefh'eremy disclosed as fan entity' has" been` found p e'culliarlyw@desirable one;r

constituting complete unitiof high firelrei' f sistingl; fq'uali'ties; substantially soundsproofl 75 lightin weight", and yetfstrongand peruiai1 "f neutin lits character:` Ihe open* `:chambered 'f interior; the -spacingfbetweerr the'*ceilingfa'ndiy joists; and the joists 'and 'floor with-lthefovers" lying: dl'oorr 'structure' as-shownA and fdescribed f 801v abserbs` and prevents the4 transmi'ssigoni of sound. The supporting elementsfat the :sameH4 time "can gbeffof metal" so thatl theirY destrufetionz'byt-hieat--or'combustionfis a remote-'possi-vr bilitygf an d-fbys reasonvv ofth'e fact-v thatfthese -r metah elem-ents arefslreletonized or of sheet metalyinsures `VAlightness' f of weight 'easef wear-resisting surfacing layer 17a. Sus- 10U?" pended from the lower chord member 6a are sheet metal hanger bars, one of which is illustrated at 19a. It has outstanding flanges 20a clipped as shown at 18a to the lower chord member 6a. This hanger bar 19a is provided between its side walls with inset doubled portions 21a that are slotted, as shown at 22a, the portions between the slots being inset as illustrated at 23a and designed to receive holding nails 24a driven through the ceiling sheets 25a and into said slots.

From the foregoing it is thought that the construction, operation and many advantages of the herein described invention will be apparent to those skilled in the art without further description, and it will be understood that various changes in the size, shape,

*proportion and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advanta es of the invention.

vhat I claim, is:

1. A floor-ceiling structure comprising a skeleton joist having upper and lower longitudinal bars and an open work lattice connecting the same, a deck of channel met-a1 units having depending side flanges laid on the upper bar, a layer of sound insulating material laid onthe deck, a layer of wearresisting material denser than the insulating material and overlying the same, hangers carried by the lower bar of the joist, and a ceiling suspended by said hangers in spaced relation'to the lower barcof the rjoist.

2.- A vfloor-ceiling structure comprising a skeleton'joist having upper and lower longi tudinal bars and an open work lattice connecting the same, a deck of channeled metal units having depending side flanges laid on Vthe upper Vbar, a layer of sound insulating material laidpon the deck, a layer of wear- -resisting material denser than the insulating material and overlyingthe same, channeled hangers secured to the lower bar of the joist, and a ceiling secured to the lower portionsof the hangers in spaced relation to the lower bar of the oist.

3. A Hoor-ceiling structure comprising a skeleton joist, a deck mounted on the joist,

Ya layer of sound insulating material onthe deck, a layer of wear resisting material overlying the sound insulating material, and a layer of supporting material interposed between the two said layers and denser than the insulating material.

I afiix my signature.

In testimony whereof,

' JULIUS KAHN. 

